max RPM 454

jsaylor

Petty Officer 3rd Class
Joined
Jun 20, 2011
Messages
87
I have a 25ft daycruizer with a 454, what should be WOT (max RPM)
Thanks
 

HT32BSX115

Supreme Mariner
Joined
Dec 8, 2005
Messages
10,083
Re: max RPM 454

I have a 25ft daycruizer with a 454, what should be WOT (max RPM)
Thanks

Howdy,

Welcome to iboats!


It will depend on what year your engine is, and whether it's carbed or MPI. Many carbed models are rev limited to 4700 and rated at 4600 MAX. Some of the newer MPI models are rated up to 5000 RPM.

Regards,


Rick
 

OldNBold51

Petty Officer 2nd Class
Joined
Apr 19, 2010
Messages
169
Re: max RPM 454

my 95 wellcraft 23.5' with carb'd 454 won't turn over 4200, according to my tach. I'm pretty sure the cam profile is the issue as the boat will pull hard to 4k and just run out of rev and max at 4200.
 

HT32BSX115

Supreme Mariner
Joined
Dec 8, 2005
Messages
10,083
Re: max RPM 454

my 95 wellcraft 23.5' with carb'd 454 won't turn over 4200, according to my tach. I'm pretty sure the cam profile is the issue as the boat will pull hard to 4k and just run out of rev and max at 4200.

If your engine is otherwise running ok and your tach is correct, you are probably over-propped.
 
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